巻号一覧
23 巻, 3 号
選択された号の論文の17件中1～17を表示しています
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ニュープレスケールとその測定装置について福田 光男1981 年 23 巻 3 号 p. 397-414
発行日: 1981/09/28
公開日: 2010/07/16
ジャーナル フリーThe purpose of this study was to develop a new method for measuring the force added to the tooth contact points in occlusion. A new system, which has a computer inside, measuring for the occlusal force recorded on pressure detecting sheets was developed. The pressure detecting sheets were originally produced by Fuji Photo Film Co. and it is called by the trade name of “Prescale”. The Prescale consists of two polyethylene sheets and numerous microcapsules containing a red dye between the sheets.
When the teeth are brought into occlusion, these microcapsules rupture and discharge the dye staining one of the sheets red. The density of this color is in proportion to the degree of pressure added. Original thickness of the Prescale was 200μ. But it was too thick and too hard to study the tooth contacts in occlusion. The new Prescale was improved to be 95μ thick and became available for occlusal diagnosis and treatment. The applicable pressure is from 200kg/cm2 to 700kg/cm2. The device consists of microscope, T. V. camera, microcomputer, light-source and printer. The density of the color recorded on the improved Prescale was divided into 8 degrees, and at the same time, the area of each grade was measured.
The force was given by the area of each grade multiplied by its pressure. The force of one occlusal contact point was expressed by adding the force of each grade. Ten subjects whose oral conditions were healthy were selected. Using this system, their occlusal force at their molars were measured ten times each subjects.
The maximum occlusal forces were 31.4kg (1st molar), 30.9kg (2nd molar). The mean value of the occlusal forces at 1st molar was 10.85kg, and at 2nd molar was 19.83kg.抄録全体を表示PDF形式でダウンロード (11296K) -
坂本 眞喜, 二宮 順二, 寺田 博二, 岡本 莫1981 年 23 巻 3 号 p. 415-421
発行日: 1981/09/28
公開日: 2010/07/16
ジャーナル フリーA hyaluronidase activity was demonstrated in rabbit gingiva by determining its ability to release reactive N-acetylhexosamine group from hyaluronate. The optimum pH of the enzyme was 3.6. The enzyme was inhibited by ferric ion, iodoacetamide, and ferrous ion in the decreasing order. The enzyme was activated by protamine and poly-L-lysine. For determining the extent of polymerization of the reaction products, molar ratios of hexosamine to uronic acid were estimated before and after reduction with sodium borohydride. Comparing these vales with those calculated theoretically, it was concluded that the end product of the enzyme reaction was terasaccharide. These results clearly demonstrate that hyaluronidase exists in gingival tissue.抄録全体を表示PDF形式でダウンロード (720K) -
山田 了, 佐藤 博, 佐藤 徹一郎1981 年 23 巻 3 号 p. 422-436
発行日: 1981/09/28
公開日: 2010/07/16
ジャーナル フリーIn order to determine the cause of gingival pigmentation appearing after restoration by full cast crown, the gingival tissues showing gingival pigmentation apparently due to the full cast crown were investigated histopathologically using light and electron microscopy. Additionally, elements in some of the samples were studied with an electron probe microanalyser. Under the light microscope, many dark brown depositions of varying sized were observed in a wide area of the gingival lamina propria. Reduction in the arrangement of the basal cells were observed in the epithelial layer in the neighborhood of these depositions. Examination under the electron microscope clarified that these depositions were accumulations of minute granules, that large depositions had been formed by the fusion of small ones, becoming depositions of high electron density, and that around these large depositions were fibroblasts injecting minute granules. Many minute granules were observed attached too bundles of collagen fibers. The full cast crowns contained Ag, Au, Pd, Cu and Zn, on the other hand, the depositions contained Ag, S, Ca, P and Si. The element of the minute granule was Ag, which was considered to be in the form of AgS Calcification was occurring in some of the large depositions.抄録全体を表示PDF形式でダウンロード (22928K) -
池田 克巳, 引間 徹, 楠 公仁, 渡辺 幸男, 藤橋 弘, 日吉 貴一郎, 菅沼 信夫, 岩崎 浩一郎1981 年 23 巻 3 号 p. 437-450
発行日: 1981/09/28
公開日: 2010/07/16
ジャーナル フリーIn order to prevent the periodontal disease, it would be a matter of important fact to apply cleaning the teeth and giving massage on marginal gingiva by means of brushing and using dentifrices including effective ingredients.
The aim of this study was to investigate on the effects of the dentifrice including tranexamic acid (T dentifrice) comparing with placebo (P dentifrice).
Subjects were 242 students of Josai Dental University who had no serious oral disease.
P-M-A index, redness, bleeding and dental plaque were selected as indices for clinical evaluation of periodontal disease. This study was conducted with double blind method.
The results obtained were as follows:
1) Subjects used for statistical analysis were 207 students. (104: T dentifrice group, 103: P dentifrice group).
2) T dentifrice was significantly more superior in recovery of P-M-A index (p<0.01), redness (p<0.01) and bleeding (p<0.05). On the other hand, there was no significant difference in recovery of dental plaque between T dentifrice and P dentifrice.
3) The mean reduction rates of T dentifrice and P dentifrice were 31.0% and 14.3% in P-M-A index, 36.3% and 19.6% in redness, 66.7% and 42.9% in bleeding, respectively.
4) Significant difference was observed in the general improvement (p<0.01). The rates of the general improvement of T dentifrice and P dentifrice were 71.0% and 48.5%, respectively.
5) No particular side effect was observed through this study.抄録全体を表示PDF形式でダウンロード (1230K) -
戸来 徹, 渡辺 嘉一, 鴨井 久一, 斉藤 邦男, 石橋 慶次郎1981 年 23 巻 3 号 p. 451-457
発行日: 1981/09/28
公開日: 2010/07/16
ジャーナル フリーThe purpose of the investigation was to evaluate the effects of invertase during an experimental period with the mouth wash.
The subjects were ten dental students that had healthy gingiva; they were divided into three groups.
The first group consisted of two students as controls; the second group of four students was administered 3 drops of (124units)/10ml invertase; the third group of four students was administered 10 drops of (412units)/10ml invertase.
Before the study, the subjects practiced oral hygiene for a month, and then the experiment started.
The students were ordered to rinse their mouth 10ml of solution for one minute, twice a day, during the two week period. They were also asked not to perform other oral hygiene procedures.
The results were obtained as follows:
(1) After the 3rd day observation on volume of plaque accumulation had become statistically significant. (p<0.01)
(2) After 10 and 14 day periods, the statistical significance of the occurence of gingivitis had become (p<0.05) and (p<0.01), respectively.
(3) Probing depth of the three groups was not statistically significant until the end of 14 days.
(4) There were no side effects from invertase during the experimental period.抄録全体を表示PDF形式でダウンロード (631K) -
螢光抗体法による検索花村 裕之, 玉沢 修, 鴨井 久一, 山田 亜美1981 年 23 巻 3 号 p. 458-464
発行日: 1981/09/28
公開日: 2010/07/16
ジャーナル フリーChronic desquamative gingivitis is a common clinical manifestation of a number of diseases. This study was performed to determine the immunological status of this disease.
Observations on 4 patients with desquamative lesions in the mouth, not on the skin and eyes, were as follows:
1. IgG and IgA serum levels were normal, while IgM and IgE serum levels were lower than normal.
The 50% hemolysis level (CH50) was normal in three of the cases; the second case had an elevated level.
2. The direct immunofluorescent method revealed diffuse IgG deposition in connective tissue without epithelium; IgA, IgM and IgE were not found. C1q and C3 were not found in the tissue samples.
3. The indirect immunofluorescent method revealed the following:
(1) Case 1: IgM, C1q and C3 appeared as nuclear ataining in epithelium. Deposits of C1q localized in nucleus of the basal layer of epithelium.
(2) Case 2: In the first collected serum, deposits of IgM were only found as a reticulate pattern in the basal layer of epithelium. In the serum collected 4 months later, however, both IgG and IgM showed positive reticulate patterns in the basal layer. Other globulins and complements were negative.
(3) Case 3: Deposits were not found.
4. There was no relationsip of immunoglobulins and complements between serum and biopsies.
5. There was nothing in common with specific positive patterns in the experimented cases.抄録全体を表示PDF形式でダウンロード (4362K) -
第15報・寸法変化についての知見補遺横山 邦生, 吉田 誠規, 沢田 好章, 山口 十紀夫, 松下 和彦, 名和 右悟, 飯田 和子, 山岡 昭1981 年 23 巻 3 号 p. 465-474
発行日: 1981/09/28
公開日: 2010/07/16
ジャーナル フリーSome physical, chemical and biological properties of the periodontal dressing materials with eugenol and without eugenol had been previously reported. Especially, it was considered that the adaptability of the periodontal dressing to the wound surface is an important factor by various investigation.
The purpose of this study was measured to compare the dimensional change of commercially available periodontal dressing materials (Septo-pack, COE-pak [Hard & Fast set]).
After mixing, each paste on glass board was immediately depressed placing a weight on glass board. The expansion of specimens were measured immediately afer preparetion, and soaked in distilled water at 37±0.5°C.
Measurments were made at 30 minutes, 1, 2, 3, 4 hours, 1, 3, 5, 7 and 10 days after.
The results obtained were as follows:
1. Septo-pack showed expansion during the 1-hour after preparetion and continued cotraction in process of times.
The changing value of Septo-pack showed approximatey three times higher than Peripac.
2. COE-pak [Hard & Fast set] continued contraction during in experimental period.
The cotraction state of COE-pak [Hard & Fast set] showed lower about 1.0-6.4% than COE-pak.抄録全体を表示PDF形式でダウンロード (953K) -
(2) 6ヵ月間の口腔清掃指導とその効果板津 厚治, 野村 昌人, 綱川 健一, 佐々木 勉, 西尾 信之, 石沢 賢, 水本 修一, 飯野 守康, 高松 隆常, 加藤 熙1981 年 23 巻 3 号 p. 475-482
発行日: 1981/09/28
公開日: 2010/07/16
ジャーナル フリーOur study was designed to establish a rational system for the dental care management and treatment of periodontal disease in mental deficient adults. In the previous report, the status of oral hygiene and periodontal disease in them were surveyed.
Subjects were 42 persons (aged 17-52, IQ from 72 to under 14) institutionalized for mental deficiency.
All staffs of the institution were educated to recognize the importance of plaque control, and learned brushing technique, the method of staining plaque and recording plaque chart. They instructed and helped the mental deficient adults in oral hygiene by brushing as daily trainings.
The plaque accumulation rate (P1. R), gingival index (G. I.) and pathological pocket rate (Po. R) were evaluated on every tooth except 3rd molar and the teeth with artificial crown at the time of the instruction and subsequent 2, 4 and 6 months.
The results were as follows:
1) P1. R was remarkably improved during the first 2 months (51.9%-29.3%). However, during the subsequent 4 months, P1. R was not changed significantly.
2) G. I. was decreased remarkably from 1.37 to 0.92 during the first 2 months and 0.79 at subsequent 4 months with statistical significance.
3) Po. R were decreased from 32.1% to 21.9% at the first 2 months and 17.4% at subsequent 4 months.
5) The correlation between PI. R and G. I recognized before oral hygiene instruction was not found after the first 2 months, but again found apparent at subsequent 2 months.
The results of this study clearly showed that the oral hygiene instruction is very important for mental deficient adults, and it was obviously effective that auxiliary and helper should recognize the importance of plaque control and perform repeatedly oral hygiene instruction to them as daily training.抄録全体を表示PDF形式でダウンロード (797K) -
萩原 さつき, 八幡 三郎, 和泉 雄一, 大東 君江, 渡辺 久, 小林 誠, 北村 滋, 横田 誠, 小鷲 悠典, 野口 俊英, 石川 ...1981 年 23 巻 3 号 p. 483-489
発行日: 1981/09/28
公開日: 2010/07/16
ジャーナル フリーThe purpose of this study was to determine the prevalence of periodontal disease in 690 15-year-old school children, living in Tokyo, Japan. This clinical survey was performed prior to the roentogenografic examination which was intended to study the prevalence of marginal bone loss.
Plaque Index (by Silness and Löe) and Gingival Index (by Löe and Silness) were recorded on maxillary right first molar, left incisor, first premolar, mandibular left first molar, right premolar and right incisor. Pocket depth was measured in mm at the six teeth, maxillary and mandibular first molars, and incisors on the mesial sides. Bleeding Index during probing (by Ainamo) was also recorded.
The means of the Plaque Index were 1.00 and 1.30 in girl and boy students respectively. The girl students were statistically superior (p<0.05) than the boys in oral prophylaxis. About 60 per cent of the children exhibited gingival inflammation as indicated more than 1.00 of Gingival Index. Very severe inflammation more than 2.00 of Gingival Index was observed about 1 per cent among the school children. About 30 per cent of the examined teeth showed pockets deeper than 2mm. About 10 per cent of the examined teeth were bleeded on probing.
These results suggest that periodontal breakdown was occured on more than 10 per cent the 15-year-old school children. Periodontal care and education are necessary to early teen aged children.抄録全体を表示PDF形式でダウンロード (693K) -
唾液による実験的研究角田 正健, 佐藤 春海, 大串 勉1981 年 23 巻 3 号 p. 490-498
発行日: 1981/09/28
公開日: 2010/07/16
ジャーナル フリーThe purpose of this study was to clarify the effect of sodium copper chlorophyllin (Chn.) for halitosis.
Volatile sulphur compounds (V. S. C) produced during the incubation of whole saliva were analyzed by gas chromatograph. The changing of leucocytes and epithelial cells in incubated whols saliva were observed using microscope. The effect of anti-bacteria against oral anaerobic bacteria was also observed.
The following conclusions were obtained as the result of judging the halitosis control effect of Chn. by its experimental use of the saliva of periodontal patients having halitosis
1. By adding and incubating 100mg, 50mg, 10mg and 5mg Chn. respectively into 1ml saliva, V. S. C. were not detected. However, when sampled at 1mg addition under the condition of incubate 36 and 48 hours, a small amount of V. S. C. was detected.
2. The destruction speed of cellular components by incubate, in comparision with a controlled group, was not effected by addition of Chn.
3. By microscopic observation, cell attachment on obsorption of Chn. were found which suggested its combination with protein.
4. Almost any effect of anti-bacteria or bacteria growth prevention against oral anaerobic bacteria of Chn. was not observed.抄録全体を表示PDF形式でダウンロード (2444K) -
ブラッシング速度とブラッシング圧との関係渡辺 孝章, 牧田 亨, 松浦 久雄, 新井 高, 中村 治郎1981 年 23 巻 3 号 p. 499-508
発行日: 1981/09/28
公開日: 2010/07/16
ジャーナル フリーThe effect of toothbrushing speed on toothbrushing pressures was evaluated during five tootbrushing procedures.
Five different kinds of toothbrushing methods (Scrubbing, Roll, Fones, Horizontal, and Vertical) were carried out with one kind of toothbrush (Perio-M). For each toothbrushing method, three different rates of brushing stroke (High speed, Standard speed, and Slow speed) were performed. A specifically designed microtransducer was set on a temporary resin crown to measure the brushing pressure exerted on the buccal surface of upper first molar.
The subjects were 9 males and 1 female consisted of dental students and dental staffs of school of Periodontics and Endodontics.
Also, integrated toothbrushing pressures per stroke and per second applied on the buccal surface of upper first molar of a plastic jaw model which corresponded to the work load were recorded with a integrator.
The subjects were 5 males and 2 females. Three different kinds of toothbrushing methods (Scrubbing, Fones, and Horizontal) were carried out with one kind of toothbrush (Perio-M).
The results obtained were as follows:
(1) The mean toothbrushing pressure of standard speed was significantly higher than the other two brushing rates for each toothbrushing procedure.
(2) For Scrubbing and Horizontal method, integrated brushing pressure per stroke and per second had a tendency to show higher value in Standard speed compared with the other two rates.
Similar trend was not found in Fones method.抄録全体を表示PDF形式でダウンロード (2386K) -
木下 四郎, 渡辺 久, 米良 豊常, 北村 滋, 小林 誠, 長田 豊, 和泉 雄一, 小鷲 悠典, 野口 俊英, 石川 烈1981 年 23 巻 3 号 p. 509-517
発行日: 1981/09/28
公開日: 2010/07/16
ジャーナル フリーMaintenance phase is the most important stage in terms of the patient's continued oral health. Whether periodontal therapy succeeds or not depends on his plaque control.
O'Leary et al. (1972) has devised “Plaque Control Record” and noted that goal in teaching oral hygiene procedures was to reduce plaque accumulations until they were found on 10 percent or less of the available tooth surfaces.
The purpose of this study was to investigate appropriate level of plaque control in order to maintain periodontal health at the maintenance phase using the plaque control record.
36 patients who had been recieved periodontal therapy at our department and visited hospital for periodic recall were investigated. Oral hygiene status and periodontal tissue condition of these patients were evaluated by the plaque control record, oral hygiene index, gingival index and pocket depth. In addition, oral photographs of the patients were taken.
The results obtained were as follows:
1. It seemed to be very difficult that patients maintained at the level of 10 percent or less of plaque control record at the maintenance phase.
2. The patients, who showed the level of teen to twenty percent of plaque control records, exhibited clinically no inflammation at their gingiva and did not recur the deepening of periodontal pockets.
3. At the thirty percent of plaque control record, edematous gingiva was observed. When the level of plaque control reached to forty clinically inflammatory change was evident.
4. It was found that the plaque was retained more at the mandibule than the maxilla, on the left than the right, at the mesiodistal surfaces than the buccolingual and at the mesial aspects than the distal.抄録全体を表示PDF形式でダウンロード (5589K) -
神山 義信, 浅沼 勝, 徳嵩 昇一, 前田 久美子, 梁川 誠郎, 堀内 博1981 年 23 巻 3 号 p. 518-525
発行日: 1981/09/28
公開日: 2010/07/16
ジャーナル フリーThe purpose of this study is to estimate the capacity of the gingival bleeding index (B. I.) to assess the inflammatory condition of the periodontium.
Thirteen periodontally healthy students (mean age: 24.1) participated in this study. Prior to the start of the experimental period, a thorough scaling was performed on each subject and a correct brushing technique (mostly scrubbing method) was instructed. After a healthy oral condition, free from the plaque, was established, the subject was asked to refrain from brushing. Items observed were bleeding index, plaque index, crevicular depth and the amount of the gingival crevicular fluid. Care was taken to observe any change of the gingival color. Photographic records were also made on every appointment.
The results were as follows:
1. A significant correlation was observed between the bleeding index and the amount of the gingival crevicular fluid.
2. The plaque index and the amount of the gingival crevicular fluid were also highly correlated.
3. Increase of the crevicular depth was observed after the cessation of the plaque control.
4. The depth of the mesial and distal sulcus were deeper than those of labial and lingual sulcus.
5. The bleeding index measured at the mesial and distal sulcus was higher than the one at the labial and lingual sulcus.
It is concluded that the gingival bleeding index is a substantial clue for obtaining the information about the inflammatory condition of the gingiva.抄録全体を表示PDF形式でダウンロード (611K) -
大森 靖, 大森 恒, 加藤 光子, 小倉 延重, 渡辺 洋, 大野 友三, 太田 純夫, 高橋 佑臣, 西村 徹1981 年 23 巻 3 号 p. 526-530
発行日: 1981/09/28
公開日: 2010/07/16
ジャーナル フリーThe patient, male 24 years old had contracted Down's Syndrome, was attacked with marginal periodontitis.
Initially, the oral cavity of patient was cleaned and controled with an electro-toothbrush, then the fullmouth periodontal surgery was performed under general anaesthesia (G, O, F).
At present, 18 months after the operation, the oral condition of patient preserved well prognosis.抄録全体を表示PDF形式でダウンロード (5115K) -
J. D. MANSON1981 年 23 巻 3 号 p. 531
発行日: 1981/09/28
公開日: 2010/07/16
ジャーナル フリーPDF形式でダウンロード (90K) -
丹羽 滋郎1981 年 23 巻 3 号 p. 531a-532
発行日: 1981/09/28
公開日: 2010/07/16
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1981 年 23 巻 3 号 p. 533-561
発行日: 1981/09/28
公開日: 2010/07/16
ジャーナル フリーPDF形式でダウンロード (3483K)
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